Driving mechanism for electrically-propelled vehicles.



E. W. SCHNEIDER. DRIVING MEGHANISM POR ELEGTBIGALLY PROPELLED VEHICLES.

l 3 APPLICATION FILED MAYSl, 1910. 1,093,149. Patented Apr. 14, 1914.

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.APPLIOATION FILED MAY 31, 1910.

Patented Apr.14, 1914.

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' DRIVING MECHANISM Eon ELEc'rmcALLY-PEOPELLED VEHICLES.

Specification of Letters Patent. Application filed May 31, 1910.` SerialNo. 564,101.

Patented Apr. 14, 1914.

To all whom it may concern Be it known that I, EUGENE-1V. SCHNEI- DER, acitizen of the United States, residing in the city, county, and State ofNew York, have invented certain new and useful Improvements in DrivingMechanism for Electrically-Propelled Vehicles, of which the f ollowingis a full, clear', andv exact description.

In the construction of electrically propelled automobiles the usualpractice heretot'ore has been to mount the driving motor or motors onthe body of the vehicle and transmit the power thereof to the drivingwheels through the instrumentality of transmission gearing.

My present Vinvention is designed primarily to do away with suchtransmission gearingand to this end I make 'the driving motor, 0r eachdrivingmotor, apartl of the wheel which it drives. This constructionisthus advantageous not only in avoiding complicated and costlytransmission mechanism and 'the concomitant loss of power therein, butalso in affording a more fiexible speed control with economical use ofpower,

since the speed of thevehicle can ce variedI by the well knownseries-parallel control, and by cutting out one or more of the motors,when more than one motor is` employed.

A convenient and efficient embodiment of the invention is illustrated intheannexed drawings, in which- Figure 1 shows 'the combined drivingwheel and motor in section. Fig. 2 illusmotor,designated by 2, is

trates the punchings or laminae of which the field and armat-ure coresare built up.

The axle 1, on which the driving wheel shown in Fig. 1 is mounted, isnon-rotatably secured to the vehicle body in any convenient manner, andthe field element of the rigidly fixed on the axle. The field core ispreferably of the laminated type, built up o punchings such as are shownat 3,'Fig. 2, bolted together in the customary manner. The axle isprefer- 'ably tubular, and the field leads 4,` 5, extend through thesame to the field winding 6. The armature, 7, surrounds the lfieldinstead of being surrounded by the field, and is also of'. the laminatedtype, built upl of punchings 8, Fig. 2. The driving wheel comprises apair of convex plates 9, 1()` betweenl which the armature is rigidlymounted, these plates being rotatably mounted on the axle in anysuitable way,'as by means of the ball bearings shown. At the peripheryof these plates, which in effectconstitute the hub of the wheel, are twoflat rings 11, 12,

`secured between the armature and the plates,

and between the rings the spokes 13, carrying the felly 13, are securedin any suitable manner.

The 'commutator 14.is carried lb the plate 9, on the inner side of thewhee and its bars are connected by taps, as 15, to the proper portionsof the armature winding 16. The carbon brushes 17, 18, are slidablymounted ina carrier or holder 19 on the axle 1 and are pressed againstthe side of the commutator by tension springs'20. The connections of thebrushes to the motor circuit of course .depend upon the type of themotor, whether series, shunt, or compound. The brush leads, 17a, 17, maybe led out through the tubular axle, as shown. A cap 21*7 detachablyfastened to the hub-plate 9 protects the commutator and associated Iparts from dust, etc., and a cap 22, ably mounted on t-he hub-plate 10,erforms a similar function at the other si e of the wheel.

From the foregoing it will be seen that the Wheel, being rigidlyyconnected to the revolving elementv of the motor.` revolves therewith;the electric power of the source of current, to which the motor isconnected, being translated 'into mechanical power in the wheel withoutthe employment of me-- chanical transmission devices such as gears,sprockets and chains, etc., with their concomitant losses. r

It is to be understood that the construction herein specificallyshown-and described is merely the preferred form of the invention',which is capable of various other embodiments without departure from itsproper spirit and scope.

I claim:

The combination with a non-rotatable vehicle-axle; of; a field ma etrigidly mounted on the said axle; a hu comprising plates or disksrotatably mounted on the axle at opposite sides of the said fieldmagnet, the disks being oppositely convex; an armature encircling thefield magnet'between the said disks at the peripheryt ereot, and havinga core composed of lamin or plates perpendicular to. the axle;` fiatbinding rings on opposite sides of saidcore, between the same and therespective disks;

remOV- said rings extending radially beyond the spokes to bind the seineIirinly between the edges of the disks and the outside of the rings; anda folly carried by the outer ends armature core;'binding bolts at theperiph- I of the spokes.

ery of the disks, extending through Jche Inhtestiineny whereof I :ilixmy signe- 5 disks, the binding rings, and the lamina-3 of ture in thepresence of two subscribing Witthe armature core to bind all said partenesses. l

rnily together; radial spokes having their EUGENE W. SCHNEIDER innerends arranged .between the binding, lvitnesses:

rings; binding' belts extending through the M Lmvson Dwcn, 10 binding'rings and the inner ends of said i S, S. DUNHAM,

